Sanitary-can construction



Sept. 29, "1925. 1,555,294

P. KEMPTER SANITARY CAN QONSTRUGTION Filed Feb. 20. 1925 INVENTOR BY WCZORNEY 1 Patented Sept. 29, 1925.

restrai- PATENr PHILIPy KEMPTER, OF MILWAUKER'WISCONSIN.

SANITARY-CAN CONSTRUCTION.

Application filed February To all whom t may concern.'

Be it known that I, PHILIP KEMPTER, a citizen of the United States, residing at lVIilwaukee, in the count-y of Milwaukee and State of l/Visconsin, have invented new and useful Improvements in Sanitary-Can Construction, of which the following is a speciiication. f

This invention relates to improvements in sanitary can construction.v y

In the metallic containers in present day use, a material defect, that of weakness of the head or collar portion, is readily observable. Further, considerable trouble is experienced in placing the cap for the container in proper closing and sealing position within the head portion due to the 'distortion of the collar portion adjacent'the cap seating portion of the head. To lremedy this difliculty, wire strands have been sol dered to the collar portion adjacent the head, but such reinforcing means have merely served as temporary stitl'eners, whose function was destroyed within a short time, due to the rough handling to which these containers are subjected.

Among the objects of the present invention it is contemplated to provide a reinforced upper portion in a container; to provide a structurally simplified and yet rigid head and collar portion on said container; to provide a novel structural arrangement of the head portion in a fluid container whereby to insure a perfect leak-proof fit of the cover within the head portion adjacent the collar portion; to eliminate the use of additional reinforcing means positioned along the collar portion and used in conjunction with the head of the container; and to form a container of stamped or seamed metal at a re-latively lower production cost and simpler in structural detail from those heretofore'in use, but possessing suiiicient rigidity to withstand the rigor of constant rough handling.V

Specifically, it is aimed in this invention to alter the entire structural formation of the upper section of the container, whereby to eliminate the usual one piece collar and head portion with its accompanying reinforcing wires or bands and to provide in lieu thereof a separate head portion of greater rigidity than the collar portion and adapted to be permanently fastened thereto.

Further, it .is aimed to provide a reinforcing backing which is permanently fixed to 20, 1925. Serial No. 10,479.

the collar portion and serves as the head portion of the container.

lifurther, it is aimed to provide a recess in the head portion, which recess serves to insure a perfect seal-retention means for the cap or covering for the container in order to prevent leakage from the top thereof.

Still further, it is contemplated to form the head portion of a metal stamping of thicker material than that of the collar portion, so as to form a firm cap retaining seat and at the same time form la proper reinforcing medium for the upper portion of the container.

Still further, it is aimedl to provide a single bead, band or wire at the rolled top portion of the head'to form the head reinforcing means for the container. y

Still furthe-r, it is aimed to so construct the rolled wall of the head as to provide a resilient cap retaining recess in the head of the container.

These and other advantages, capabilities and features of the invention will appear from the subjoined detailed description of but one specific embodiment in which my invention may take form, which embodiment is illustrated in the accompanying drawing, in which- Fig. l is a front elevation of the section containing the subject-matter of the invention; and

Fig. 2 is a section along lines 2 2 of Fig. l.

Referring now more particularly to the reference characters of the drawing, in which but one of the possible embodiments of my invention is illustrated, numeral l represents a' container, formed in this case iby the well known metal manufacturing process. Numeral 2 represents the collar portion of one type of container contempla-ted in my inven-v tion, which collar portion, as shown in the drawing is illustrated as extending vertically upward and integral with the body portion of the container, though the slope thereof may be readily varied. This collar portion, it will be observed, is of the same thickness as the body portion and consequently presents aweakened area at the upper surface thereof.

The head portion 3, which is adapted to be fastened to the upper section of the collar 2 by welding, brazing, soldering, or any other way of attaching, consists of an annular stamping having an offset flange il adapted to fit about the periphery of the collar 2; a cap receiving base 5 bent angularly over the flange; and a circular reinforcement receiving ring formed by bending the metal angularly with respect to the base and having an end extremity out-turned against the outer wall of the contai-ner to form a ring so as to allow a heavy reinforcement to be inserted therein.

As shown clearly in 2, the head portion is considerably thicker than the .collar portion 2, so that the otlset flange portion 4f, when secured to the collar portion by any of the above-mentioned methods, will forni a bafffkingv and reinforcing means of much greater rigidity and strength 'than the walls of the collar portion.

The cap receiving base 5 which is formed at right angles to the offset flange portion al, which connects the head 3, of which it is a part, to the collar 2 of the container' has a recess 9 formed at its outer periphery. 'lliis recess can be formed in the manufacturing process by bending the wall 8 forming the wire receiving groove G to form an angle less than a right angle as illustrated in Fig. 2. By means of this particular inclination of the wall 8, the recess 9, which is formed between this Wall and the base 25, will assure a perfect seat for the cap (not shown) which cap, when inserted, will be prevented from being displaced upwardly by abutting the resilient angularly inclined wall 8.

The cap, whether it be a plain, paper dise, or aV paper' disc backed by metal, or a paper disc metal edged, or the common metallic cover, is pressed down into the angular cess against the resistance of the wall S and is maintained therein in perfect sealing relation by the pressure of the inwardly inclined wall 8.

By means of this separable head portion, attached to the collar portion of the container lin any of the above-mentioned methods, it can be readily seen that ay simple structure, having a minimum of reinforcingl bands and wires and having considerable rigidity throughout the whole area of contact. of the flange 4 with the collar portion, will produce an ideal container. Further, though the particular inclined formation of the wall of the reinforcement receiving groove may be readily changed so as vto produce more or less enlarged recesses, the recess will always serve as a. definite sealing medium, since the upper part of the inclined wall will always contact with the collar portion of the well-known metallic cover or cap, or contact with the outer periphery of the disc of paper or the metal reenforced paper disc serving as a cover for the container.

`While the preferred embodiment of the invention has been described with great detail, it is tobe understood that this is for the sake of clearness only, and does not limit the scope of the invention as described by the annexed claims.

What is claimed is:

l. fn a container, the combination with a collar portion, of an annular head fastened to said collar portion, said head having a base portion, an ottset'iange portion and an oppositely offset wire receiving portion at the outer periphery of the base, said flange portion being Jfastened to the collar portion, and said wire receiving portion being extended angularly upwardly and inwardly from said base to form a recess at the outer periphery of said base.

2. ln a container, the combination with a body portion` of va head portion attached thereto, a base on said head portion, an .upwardly and inwardly extending wall in teg-ral with said base, said upwardly ext-ending wall forming a recess with the base for the retention of a cover cap on said base, and a A-downwardly extending wall on said base forming the attaching means.

3. In a container, the combination with a rcollar portion, of an annular head portion attached thereto, said head having a .base portion, said base having angular Vflanges extending in o-pposite directions at the linner and outer peripheries thereof, one of said iange portions being fastened to the collar portion to form a reinforcing backing therefor and the other flange portion being extended angularly upwardly and inwardly to form a cap retaining recess between itself and .the base portion.

4. In a container, the combi-nation with a body portion, o-f a head portion attached thereto, a base .on said head portion, an inwardly and upwardly extending wall integral with said base, said upwardly extending lwall forming a recess with the base for the retention of a .cover cap on said base, and a downwardly extending wall on said base forming the attaching means, said downwardly extending wall being .of thicker material than said body portion'whereby to form a reenforcing backing therefor at the point of attachment. 

